Wrench



G. GNG

Oct. 13, 1931.

WRENCH Filed Jan.

Patented Oct. v13, 1931 MED-Sumsj GOTTFBIEDGNG, or tisana, NEAR ZURICH, SWITZERLAND WRENCH Application med January 5,1931, serial No. 506,716, ma yin Germany october 25, 1ssoi-V This invention relates to a wrench which can be employed as pipe wrench and also as bolt wrench, and is adapted to be used` ory different sizesof bolts andl pipes. l This is attained according to'tl1e,invention in that the wrench handle consists of a plurality of superposed plates rigidly connected together, oscillatable in a hollow Wrenchjaw body around a commonl pivot and terminate in tongues, some oi: which'engage directly and the others through thefin-y Vterniediaryof blades rotatably mounted in the wrenchjaw body, in horn-like claws, and*v turn these claws in opposite directions around their axle on the handle being turned, so that the jaw aperture formed by the claws nar-y rows, and in this manner the work introducedY between Vthe -claws is rigidly held thereby. n An embodiment of the invention isillustrated by way of example in the accompany-V ,p i

ing drawings in which:

Fig. l shows the wrench in side elevation.

Fig. 2 is a section on line 2-v-2 of Fig. 4f. Fig. 3 is a section on line 3-3 of Fig. 4. n Fig. 4 is a longitudinal section on line 4-4 of Fig. 1.

^ workv inserted therein.

I claim: Y Y

13.1. wrench,` comprising in combination a handle composedv of a plurality of superposed plates, rigidlyconneeted together, a hollow jaw` body, a common axle for said plates in 55 saidj aw body, horn-like claws in 'said jaw body, a tongue on the end of each of said plates some of saidl tongues engaging in a correspondingjnumber of said horn-like claws, a pin in said jaw body, and intermedi-3 0 i l s i ate blades one for each of saidtongues not engaging directly with claws said blades os- 'cillatably mountedon said `pin engaging with the corresponding tongues and vclaws so that on said handle being turned said' claws are 65 oscillatedaround their axle, thereby narrowing the mouth of the wrench and gripping the v l In testimony whereof I aiiiX-my signature. f GOTTFRIED GNG.

The handle ot the wrench consists,apart from the cover plates a which can loe-omitted,

, ed in the milled out wrench jaw body c so that they can be turned around an axle k. The plates terminate in tongues d, some of which engage directly and the others through claws 7c. These claws are-located in the wrench jaw body c at its jaw aperture g,

of a plurality of plates b, whichare mountjy the intermediary of blades ein horn-like whereas the blades @are rotatable mounted 4 on an axle it in the body e. The claws f and other. Thus the aperture formed-between,

these claws is narrowed and the work rigidly gripped between the claws.

also the tongues CZ are connected by springs Y Y ion" geo 

